one forces constructs the wish which is expressed by the dream, while the other exercises a censorship upon this dream-wish and, by the use of this censorship, forcibly brings about a distortion in the expression of the wish.
Freud’s foundational structural formulation: censorship is the psychical agency that compels dream-distortion by opposing the wish-forming force, constituting the dynamic core of dream-work.
, The Interpretation of Dreams, 1900thesis